我使用以下代码进行过渡
CATransition *transition = [CATransition animation];
transition.duration = duration ;
transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
transition.type = kCATransitionMoveIn;
transitioning = YES;
transition.delegate = self;
[self.view.layer addAnimation:transition forKey:nil];
fromUIView.hidden = YES;
toUIView.hidden = NO;
UIImageView *tmp = toUIView;
toUIView = fromUIView;
toUIView = tmp;
,但我希望在过渡过程中暂停0.3做某事,然后恢复到进步的过渡0.6做某事并恢复。有可能吗?
我以前从未使用过CATransition
,但我认为您可以使用NSTimer
,GCD
或performSelector:withObject:afterDelay:
。
例如:
double delayInSeconds = 0.3;
dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
[self doSomething];
});
doSomething
是
-(void)doSomething{
[self pauseLayer:thisLayer];
//do something
[self resumeLayer:thisLayer];
}